Ключевые слова: amplifier, audio, bright, computer, design, dial, digital, division, electric, element, handles, handsfree, icon, illustration, interface, isolated, knob, led, level, loud, louder, macro, max, maximum, measurement, min, minimum, mixer, music, nobody, panel, plastic, power, radio, screw, sign, sound, stereo, studio, style, switch, symbol, technology, tuner, turn, user, volume, white,